its possible i have it in your UI
attached is Drums Default eq2ui_journals_quest.xml
with 3 extra lines that I added to it Not the best i just really copied the part from the quest list search function. But it works I cant get it to show a Button or text but i made Tooltips so you know when your hovering over the right place (Right below the name of each collection)
Maybe you can make it better i hope like making it visible.
Edit: Fixed so it now shown and Re-Uploaded looks nice now too